Floor warning sign



FIG. 1 is an elevated front view of the floor warning sign.

FIG. 2 is an elevated rear view of the floor warning sign.

FIG. 3 is an elevated right side view of the floor warning sign.

FIG. 4 is an elevated left side view of the floor warning sign.

FIG. 5 is a top view of the floor warning sign;

FIG. 6 is a bottom view of the floor warning sign; and,

FIG. 7 is an elevated, isometric right side view of the floor warning sign.

The broken line showing of a battery cover in FIG. 6 forms no part of the claim. 

The ornamental design for a floor warning sign, as shown and described. 